This makes no sense!

Не то тебя вынесёт наружу не через тот камин.

It refers to Harry Potter getting out of the magical transporting fireplace once he has arrived at his destination.
I just cannot put those words in a order that makes sense in English and this action is not included in the English version of the story.
thnx

"Otherwise you will be not blown outside through that chimney". In the sense of "you will be blown outside, but not though that one chimney (maybe pointing at it), but... <whatever, other chimney, door,..>

But if you swap 2 words - "через" и "не", the meaning changes:
"Otherwise you will be blown outside through the 'wrong' chimney", 'wrong' being 'not the (right) one' literatelly.

"Otherwise you will be not blown outside through that chimney". In the sense of "you will be blown outside, but not though this one chimney (maybe pointing at it), but... <whatever, other chimney, door,..>

But if you swap 2 words - "через" и "не", the meaning changes:
"Otherwise you will be blown outside through the 'wrong' chimney", 'wrong' being 'not the (right) one' literatelly.